> If I want to find out if an TCP port is open, I can telnet to it.
> But what do I do if it is an UDP port? How can I know if it is open?
> Is there any tool for that?
Use nmap, it has a udp portscan. See http://www.insecure.org
Fyodor did a good job with this particular program. Nessus
(www.nessus.org) will also do udp scans, but not explicitly, and probably
not in the context in which you mean.
Cheers!
Brian
>
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